1,721,254 research outputs found
Optimization of difference patterns for monopulse antennas by a hybrid real/integer-coded differential evolution method
No full textOptimization of the difference patterns for monopulse antennas by a hybrid real/integer-coded differential evolution method
Author(s): Caorsi, S (Caorsi, S); Massa, A (Massa, A); Pastorino, M (Pastorino, M); Randazzo, A (Randazzo, A)
Source: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Volume: 53 Issue: 1 Pages: 372-376 DOI: 10.1109/TAP.2004.838788 Part: Part 2 Published: JAN 2005
Times Cited: 46 (from Web of Science)
Cited References: 9 [ view related records ] Citation Map
Abstract: The optimization of difference patterns of monopulse antennas is considered. The synthesis problem is recast as an optimization problem by defining a suitable cost function. In particular, in this paper, the cost function is based on constraints on the side-lobe levels. A subarray configuration is adopted and the excitations of the difference pattern are approximately determined. The optimization problem isefficiently solved by a differential evolution algorithm, which is able to contemporarily handle real and integer unknowns. Numerical results are reported concerning classical array configurations previously considered in the literature.
Accession Number: WOS:000226261600014
Document Type: Article
Language: English
Author Keywords: array antennas; evolutionary algorithm; monopulse antennas; sum and difference patterns
KeyWords Plus: SUM; ARRAYS
Reprint Address: Caorsi, S (reprint author), Univ Pavia, Dept Elect, Via Palestro 3, I-27100 Pavia, Italy
Addresses:
1. Univ Pavia, Dept Elect, I-27100 Pavia, Italy
E-mail Address: [email protected]
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Web of Science Category: Engineering, Electrical & Electronic; Telecommunications
Subject Category: Engineering; Telecommunications
IDS Number: 886VT
ISSN: 0018-926
A regularization scheme for electromagnetic inverse problems: Application to crack detection in civil structures
No full textPerformance Analysis of Memory Cloning Solutions in Mobile Edge Computing
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An inexact-Newton method for short-range microwave imaging within the second order Born approximation
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
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only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
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An Antenna Array Diagnosis Approach Based on CNN Inversion and CFAR Detection
No full textIn this paper, a novel approach for the diagnosis of planar antenna arrays is presented. The developed method is based on the use of a U-Net convolutional neural network for reconstructing the surface electric-field distribution over the array aperture starting from measurements of the radiated field collected in the far-field region. The obtained distributions are subsequently post-processed through a constant false alarm rate approach to identify the possibly faulty elements. The proposed technique has been validated using numerically simulated data concerning realistic patch arrays, showing good detection capabilities
A hybrid asymptotic-FVTD method for the estimation of the radar cross section of 3D structures
No full textThe Finite Volume Time-Domain (FVTD) method is an effective full-wave technique which allows an accurate computation of the electromagnetic field. In order to analyze the scattering effects due to electrically large structures, it can be combined with methods based on high-frequency approximations. This paper proposes a hybrid technique, which combines the FVTD method with an asymptotic solver based on the physical optics (PO) and the equivalent current method (ECM), allowing the solution of electromagnetic problems in the presence of electrically large structures with small details. Preliminary numerical simulations, aimed at computing the radar cross section of perfect electric conducting (PEC) composite objects, are reported in order to evaluate the effectiveness of the proposed method
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